#10 wrong lang when RTF to DTBook 2005

[Olaf]

Any rtf will get
no xml:lang atrribute in root element
when doing rtf to DTBook 2005
Whatever..., if thusly converted xml is then furthered to DTBook - Narrator (z3986 2005) it doesn't get past Validation ALTHOUGH it passed the DTBook 2005 Validation if that is run singly.